HB 4426 Michigan House · 2025-2026 Regular Session

Transportation: carriers; age requirement to operate a commercial motor vehicle; modify. Amends sec. 2d of 1963 PA 181 (MCL 480.12d).

HB 4426 amends Michigan's Motor Carrier Safety Act (MCL 480.12d) to set a minimum age of 21 for drivers transporting hazardous materials requiring placards under federal rules. It maintains the existing 18-year-old minimum for most commercial driving but specifically raises the age requirement for hazardous materials transport. The bill does not change medical waiver or grandfathered driver provisions. This change directly affects commercial drivers operating in Michigan who transport hazardous materials requiring placards.

Issues: ✓ Transportation

Bill status passed both 4 of 5 stages cleared

Introduction

May 2025

Committee Review

Jun 2025

House Passage

Jun 2025

Senate Passage

Jun 2025

Governor

Introduced May 6, 2025 Last action Jun 26, 2025

Maddy AI version diff · 1 comparison

What changed between versions

House Introduced Bill → As Passed by the House · 3 edits · Jun 25, 2025

MINOR

This bill updates the Michigan Motor Carrier Safety Act to modernize language and clarify eligibility requirements for commercial motor vehicle operators. The changes primarily involve updating gendered language to gender-neutral terms and reorganizing the structure of the statute while maintaining the same core requirements for driver qualifications, age restrictions, and medical waiver provisions.

Scope change

No substantive change to the scope or applicability of the law; the bill maintains the same requirements for intrastate commercial motor vehicle operators.

TECHNICAL

Updated gendered language (he/she/person) to gender-neutral language (individual/person) throughout the statute for clarity and inclusivity.

Reorganized the bill structure and formatting to align with standard legislative drafting conventions.

REQUIREMENT

Maintained existing age requirements (18 years for intrastate property/passengers, 21 years for hazardous materials) and medical waiver provisions without substantive policy changes.

Floor votes · House Jun 25, 2025

How they voted

This bill passed the Senate by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Jun 26, 2025

Committee

REFERRED TO COMMITTEE ON TRANSPORTATION AND INFRASTRUCTURE

upper

Jun 26, 2025

Upper · Passed

PASSED BY HOUSE WITH IMMEDIATE EFFECT

upper

Jun 25, 2025

Lower · Passed

passed; given immediate effect Roll Call #164 Yeas 85 Nays 21 Excused 0 Not Voting 4

lower

Jun 3, 2025

Committee

referred to second reading

lower

Jun 3, 2025

Lower · Passed

reported with recommendation without amendment

lower

May 6, 2025

Committee

referred to Committee on Transportation and Infrastructure

lower

May 6, 2025

Introduced

introduced by Representative Rep. Ken Borton

lower

1 primary · 31 co-sponsors